package BinaryTree;

import java.util.Scanner;

class TreeNode{
    public char val;
    public TreeNode left;
    public TreeNode right;
    public TreeNode(char val){
        this.val =val;
    }
}

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class BinaryTreeCreate {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextLine()) { // 注意 while 处理多个 case
            String str =in.nextLine();
            TreeNode root =createTree(str);
            inorderTree(root);
        }
    }
    public static int i=0;
    public static TreeNode createTree(String str){
        TreeNode root =null;
        if(str.charAt(i)!= '#'){
            root = new TreeNode(str.charAt(i));
            i++;
            root.left =createTree(str);
            root.right =createTree(str);
        }else{
            i++;
        }
        return root;
    }
    public static void inorderTree(TreeNode root){
        if(root ==null){
            return;
        }
        inorderTree(root.left);
        System.out.print(root.val+" ");
        inorderTree(root.right);
    }
}
